use "signature whistles" that act like personal names to identify themselves to others.
Consider the case of Sarah, who moved her two Labrador retrievers from Chicago to Frankfurt. She told us: “I was paralyzed by the USDA forms. Within an hour on Www.animalpass.com, I had a timeline. They even flagged that one of my dogs needed a different crate because of her shoulder width. She arrived calm and healthy. I can’t imagine doing it alone.” Www.animalpass.com
Choose a reliable digital platform (such as AnimalPass) that allows for secure profile creation. use "signature whistles" that act like personal names